<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Grid</title>
  <style>
    .grid {
      display: grid;
      /* 数值 百分比*/
      grid-template-rows: 50px 50px 50px;
      grid-template-columns: 50px 50px 50px;
      /* grid-template-columns: 33.33% 33.33% 33.33%; */

      /* repeat 函数*/
      /* grid-template-columns: repeat(4, 25%);
      grid-template-rows: repeat(4, 200px 100px 50px); */

      /* auto-fill 关键字*/
      /* grid-template-columns: repeat(auto-fill, 100px) */

      /* fr 关键字 比例 */
      /* grid-template-columns: 1fr 2fr; */
      /* grid-template-columns: 150px 1fr 2fr; */

      /* minmax */
      /* grid-template-columns: 1fr 1fr minmax(100px, 1fr); */

      /* auto 关键字 */
      /* grid-template-columns: 100px auto  100px; */

      /* gap 间距 */
      /* grid-column-gap: 20px;
      grid-row-gap: 20px; */

      /* areas */
      /* grid-template-areas: 'a b c d e f g h i'; */

      /* flow */
      /* grid-auto-flow: row dense; */

      /*  */

    }

    span {
      font-size: 2em;
    }

    .item {
      font-size: 2em;
      text-align: center;
      border: 1px solid #e5e4e9;
    }

    .item-1 {
      background-color: #ef342a;
      grid-column-start: 1;
      grid-column-end: 3;
      grid-row: 2/4;
    }

    .item-2 {
      background-color: #f68f26;
      grid-column-start: 1;
      grid-column-end: 3;
    }

    .item-3 {
      background-color: #4ba946;
    }

    .item-4 {
      background-color: #0376c2;
    }

    .item-5 {
      background-color: #c077af;
    }

    .item-6 {
      background-color: #f8d29d;
    }

    .item-7 {
      background-color: #b5a87f;
    }

    .item-8 {
      background-color: #d0e4a9;
    }

    .item-9 {
      background-color: #4dc7ec;
    }
  </style>
</head>

<body>
  <div class="grid">
    <div class="item item-1">1</div>
    <div class="item item-2">2</div>
    <div class="item item-3">3</div>
    <div class="item item-4">4</div>
    <div class="item item-5">5</div>
    <div class="item item-6">6</div>
    <div class="item item-7">7</div>
    <div class="item item-8">8</div>
    <div class="item item-9">9</div>
  </div>
</body>

</html>